Boiler-cleaner.



L. J. BAYER.

BOILER CLEANER.

APPLICATION FILED 119111, 1911.

1,028,083, Patented May 28, 1912.

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BOILER CLEANER.

APPLICATION rum) NOV. 11, .1911.

Patented May 28, 1912.

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LEO JNO. BAYER, OF ST. LOUIS, MISSOURI, ASSIG-NOR TO BAYER STEAM SOOTBLOWER COMPANY, OF ST. LOUIS, MISSOURI, A. CORPORATION OF MISSOURI.

BOILER-CLEANER.

Specification of Letters Patent.

Patented May 28, 1912.

Application filed November 11, 1911. Serial No. 659,797.

To all whom it may concern:

Be it known that I, LEO JOHN BAYER; citizen of the United States,residing at St. Louis, State of Missouri, have invented certain new anduseful Improvements in Boiler-Cleaners, of which the following is afull, clear, and exact description, reference being had to theaccompanying drawings, forming a part hereof.

My invention has relation to improvements in boiler cleaners; and itconsists in the novel features of construction more fully set forth inthe specification and pointed out in the claims.

In the drawings, Figure 1 is a side elevation of a water-tube boilershowing my invention applied thereto, part of the furnace wall beingbroken away; Fig. 2 is a vertical cross-section through the side wall ofthe furnace taken on the line 2-2 of Fig. 1; Fig. 3 is a similarsectional view enlarged, of the upper portion of the illustration inFig. 2; Fig. 4 is a combined section and front elevation of the upperportion of the hollow sectional standard through which the steam nozzlesoperate; Fig. 5 is a side view of Fig. 4; Fig. 6 is a top plan of saidhollow standard; Fig. 7 is an enlarged hori zontal section through theside wall of the furnace on the broken line 77 of Fig. 1; Fig. 8 is afront end view of the boiler showing the header nozzles in position;Fig. 9 is a perspective (broken away) of the nozzle installation for theheader, detached; Fig. 10 is a longitudinal sectional detail showing oneof the side nozzles closed by a perforated plug for projecting jets toassist the draft; Fig. 11 is a cross-section on the line 1111 of Fig.10; Fig. 12 is a front sectional elevation of a modified form ofnozzle-supporting standard; and Fig. 13 is a side elevation of the same.

The object of my invention is to provide a cleaner or soot-blower forwater-tube boilers having the combined characteristics of the Heine andBabcock & Wilcox type, that is to say, boilers having a shell and awater-tube section in which the latter is battled transversely, andwherein either or both water-legs (or headers) are provided with hollowstay-bolts opposite the spaces between the tubes. This type of boiler(the EdgeMoor being an example) requires the installation of a blowersystem partaking of features identified with systems of both the Heineand Babcock & WVilcox boilers, said features being so disposed as towork cooperatively to accomplish the object in view, that is to say tonot only dislodge the soot, dirt, ashes and other accumulations on thewater-tubes (and shell) but to carry the material so dislodged out ofthe boiler-furnace in the general direction of the draft of the boiler.

A further object is to provide means for manipulating the movablenozzles by which the transverse projection of the cleaning fluid (steam)is accomplished, such means being particularly adapted to work inconjunction with the nozzle supports as at present installed in thisclass of boilers.

A further object is to provide other structural features the advantagesof which will be fully apparent from a detailed descriptionof theinvention which is as follows Referring to the drawings and for thepresent to Figs. 1 to 9 inclusive, F represents the furnace (the wallsbeing broken away in parts) of a well known type of water-tube boiler(Edge-Moor), S representing the shell of the boiler, and T thewater-tubes. As well understood in the art the water-tube portion isdivided off into independent intercommunicating sections by transverselydisposed battle-plates a traversed by the tubes, the general draft beingrearward and upward from the fire-box F. In the present example two suchbattle-plates and three sections are shown though such number may 'varyin practice. Disposed along one of the side walls of the furnaceopposite the middle section (in the present example) is a verticalopening 0 tapering inwardly (Fig. 7) there being located at the line ofconvergence of the vertical tapering side walls of said opening, ahollow standard or tube 1 provided with series of off-sets or shoulders8. Between each pair of offsets'is confined a hollow rotatable cylinder2 which is free to rock about the axis of the tube 1, there being onesuch cylinder opposite a space between two superposed series of tubes T.To insert the cylinders (or bearings) 2 into the tube 1, the latter mustnecessarily be made of (at least) two sections separable along avertical plane, the upper and lower ends of the respective sectionshaving cast with them the anchors or shoes 3 set in the brick work ofthe fursection adjacent such leg and a set of nozzles 4 installed asquite obvious, as otherwise no means would be present to blow thissection. To assist the draft in such section it is clear that theuppermost nozzle 4 of the series would be provided with a plug 11 inwhich the passages 1 would be turned up so as to carry the products overthe first bafiie a.

The arrangement of the hollow standard 1 with its series of bearings 2is not the only method of supporting the nozzles 4 leading from themovable riser 5; and in Figs. 12 and 13 I show a modification in theform of an outer tubular standard 1 of uniform cross-section providedwith an inner tube 2 through which the nozzles may pass. In that case asin the first form the member 1 is provided with transverse slots m forthe free play of the nozzles, the pipe 2 being previously inserted intothe tube 1. In this modification the member 1 need not be madesectional. Like the first form the standard 1 is provided with anchorarms or shoes 3 by which it may be secured to the furnace wall.

The operation, readily understood from the foregoing may be summarizedas fol lows :To clean or blow the boiler the operator opens thenecessary valves V whereupon the nozzles 8 will project the "steam jetsin the spaces between the tubes in a general direction parallel with thetubes, the nozzles 4 on the other hand projecting the jets between thetubes but in a general direction transverse or at an angle to the tubes.To reach every available portion of the boiler section dependent on thenoz zles 4, the operator seizes and moves the handle or lever 6, therebycausing the riser 5 to sweep about the common axis of the nozzles 4, thelatter oscillating about the axis of the hollow standard 1. As statedabove, any section of the boiler may be cleaned independently of anothersection, or all the sections may be blown simultaneously. It may bestated in passing that in the event the rear water-leg had no hollowstay-bolts,.it would be necessary to install a riser 5 with its nozzles.t to blow the section adjacent this leg.

Having described my invention, what I claim is 1. In combination with aboiler having a water-tube section composed of series of tubes disposedin superposed planes, and spaced apart, terminal headers communicatingwith said tubes, transverse battles for the tubes, a series of nozzlesdisposed over the tube area at one end of the water-tubes for projectinga cleaning fluid longitudinally with the tubes into the spaces betweenthe tubes, series of nozzles for projecting a cleaning fluidtransversely across the boiler into the spaces between the tubes, the

mingled fluids and the dirt dislodged thereby following the generaldirection of the draft whereby the same are expelled from the furnace ofthe boiler.

2. In combination with a boiler having a water-tube section composed ofseries of tubes disposed in superposed planes, and spaced apart,terminal headers communicating with said tubes, transverse batliestraversed by the tubes whereby the boiler is divided intointer-communieating sections, nozzles mounted over the tube area in oneof the headers opposite the spaces between the tubes for projecting jetsof clean ing fluid into said spaces in a direction lengthwise with thetubes, movable nozzles positioned opposite a section between twoconsecutive battles for projecting a cleaning fluid into the spacesbetween the tubes in a direction transverse of the boiler, the intensityof the respective currents being regulated to cause the resultantcurrent to follow the general direction of the draft and carry the dirtout of the furnace of the boiler.

3. In combination with a boiler having a water tube section composed ofseries of tubes disposed in superposed planes, and spaced apart,terminal headers communicating with said tubes, transverse battlestraversed by the tubes whereby the boiler is divided intointercommunicating sections, nozzles mounted over the tube area in oneof the headers opposite the spaces between the tubes for projecting jetsof cleaning fluid into saidspaces in a direction lengthwise with thetubes, nozzles oscillating about and disposed across a fixed axispositioned opposite a section between two consecutive bafiies, a riseradapted to sweep about said axis and coupled to the nozzles, and meansfor supplying a cleaning fluid under pressure to said riser and nozzles.

4. In combination with a boiler having a water-tube section bafliedtransversely, whereby the same is divided into sections, meansdistributed over the tube area at the ends of the tubes for projecting acleaning fluid longitudinally with the tubes into a portion of thesections and transversely into another portion of the sections.

5. In combination with a boiler having a water-tube section composed ofseries of tubes disposed in superposed planes and spaced apart, terminalheaders communicating with said tubes, transverse balfles traversed bysaid tubes whereby the boiler is divided into intercommunicatingsections, nozzles mounted over the tube area in one of the headersopposite the spaces between the tubes for projecting jets of cleaningfluid into said spaces in a direction length wise with the tubes,nozzles oscillating about and disposed across a fixed vertical axispositioned opposite a section bet-ween two consecutive baffles, a riserto which said nozzles are coupled, adapted to sweep in a circleconcentric with said axis, and means for supplying cleaning fluid underpressure to said riser.

6. In combination with a boiler having a water-tube section composed ofseries of tubes disposed in superposed planes and spaced apart, terminalheaders communicating with said tubes, transverse baiiles traversed bysaid tubes whereby the boiler is divided into inter-communicatingsections, nozzles mounted over the tube area in one of the headersopposite the spaces bet-ween the tubes for projecting jets of cleaningfluid into said spaces in a general direction lengthwise with the tubes,nozzles oscillating about and disposed across a fixed vertical axisopposite a section between two consecutive baffles, a riser, a hollowswiveled joint coupled to the base of said riser and provided with asection oscillating about the axis of oscillation of the nozzles, theouter ends of the nozzles being secured to the riser, the partsoperating substantially as set forth.

7. In combination with a boiler having a water-tube section composed ofseries of tubes disposed in superposed planes and spaced apart, terminalheaders communicating with said tubes, transverse baiiles traversed bysaid tubes whereby the boiler is di vided into inter-communicatingsections, nozzles mounted over the tube areas in the headers oppositethe spaces between the tubes for projecting jets of steam into saidspaces in a general direction lengthwise with the tubes, nozzlesoscillating about and disposed across a fixed vertical axis opposite asection between two consecutive bai'lles, a vertical riser, a hollowswiveled joint at the base of the riser provided with a sectionoscillating in an arc concentric with the axis of oscillation of thenozzles, the outer ends of the several nozzles being secured to saidtubes disposed in superposed planes and spaced apart, terminal headerscommunicating with said tubes, transverse battles for the tubes dividingthe boiler into intercommunicating sections, means distributed over thetube area of one of the headers for pro jeeting a cleaning fluid throughsaid header into the spaces between the tubes in a general directionparallel to the tubes, and means for projecting a cleaning fluid intoone or more of the boiler sections into the spaces between the tubes ina general direction transverse to the tubes.

9. In combination with a boiler having a water tube portion bafliedtransversely and divided into intercommunicating sections, meansdistributed over the tube area at one end of the tubes for blowing asection in a general direction parallel to the tubes, and means forblowing a section in a general direction transverse or at an angle tothe' tubes.

10. In combination with a boiler having a water-tube portion baflledtransversely and divided into intercommunicating sections, meansdistributed over the tube area at one end of the tubes for blowing asection in a general direction parallel to the tubes, means for blowinga section in a general direction transverse or at an angle to the tubes,and means identified with the transverse blowing means to drive thedislodged dirt in the general direction of the draft.

In testimony whereof I affix my signature, in presence of two witnesses.

LEO JNO. BAYER.

Witnesses EMIL STAREK, J 05. A. MICHEL.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner 01 Patents, Washington, D. C.

